Hyacinth stems can be cut after the flowers have finished blooming and the foliage starts to turn yellow. It is important to allow the foliage to die back naturally to help the bulb store energy for the next growing season. Cut the stems to ground level once the foliage has dried out completely.
It is a term used by florists. Cut foliage means the same as cut flowers only it's foliage.
Cut off the old flowering shoot.Liquid feed the bulb once a fortnight until the foliage starts to turn yellow. Cut the foliage down to two inches from bulb and dry off the bulb, give it a rest and start it off again the following year.
Yes, but only the flower stems not the leaves.
There are a LOT of different types of salvia. Some are perennial and some are annual. If yours is a perennial you should cut it back for the winter. Recommendations differ for different climates, but usually you can cut it back to 6-8 inches. Leave the stems a little taller in Prairie climates.
Leave them until the foliage has completely yellowed and resist the temptation to cut back the foliage, or the corms won't store up the nutrients they need for the next season. If your area has severe winters, you can dig the corms after the first frost, dry for a few days and then store in paper bags.
If you cut the main flower back to the buds on the stem you will get a second flush of flowers.
Tulips stems should be cut on a bias. To make them stay fresher for longer, cut them, then roll each stem in newspaper for 2 hours, then cut again.
Best to leave until all foliage has died and then cut off dead foliage to ground level
After tulips bloom, you can cut the foliage back by half, so they can still store some energy for the next year's flowers. When it gets hot, the leaves will turn yellow and die back. You can then remove the leaves. In the spring they will come up again and repeat the cycle.
Deadhead the flower unless you want the seeds. Every three years, you should thin the iris or it will stop blooming.
Cut off the old flowers the foliage will die back naturally in the Autumn.